In the doubly heavy sector, so far \(\Xi _{cc}\)  baryon is experimentally detected with one star status in PDG[1]}.
In 2017, the LHCb collaboration[2]} observed \(\Xi _{cc}\)  via \(\Lambda _c^+ K^- \pi ^+ \pi ^-\)  channel in \(pp\)  collission at resonance mass of 3621 MeV. A search of \(\Xi _{cb}\)  baryon was held by LHCb, observing the decay channel \(D^0 p K^-\)  at center-of-mass energy 13 TeV during \(pp\)  collission, but no evidence was found [3]}. The mass of \(\Xi _{cb}\)  baryon is supposed to be in range of 6.7-7.2 \(GeV/c^2\) . Recently, \(\Xi _{cb}\)  and \(\Omega _{cb}\)  are detected in mass range of 6700-7300 \(MeV/c^2\)  via \(\Lambda _c \pi \)  and \(\Xi _c \pi \)  decay modes, during \(pp\)  collission with 95% confidence level, but evidence of signal is not found [4]}. \(\Xi _{bb}\)  is still not experimentally detected, but there are major possibilities to be detected after experimental observation of \(\Xi _{cc}\)  state.
